4042142243212 has 12 divisors (see below), whose sum is σ = 7076697566400. Its totient is φ = 2020228652816.

The previous prime is 4042142243203. The next prime is 4042142243263. The reversal of 4042142243212 is 2123422412404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210606403 + ... + 210625594.

It is an arithmetic number, because the mean of its divisors is an integer number (589724797200).

Almost surely, 2^{4042142243212} is an apocalyptic number.

It is an amenable number.

4042142243212 is a deficient number, since it is larger than the sum of its proper divisors (3034555323188).

4042142243212 is a wasteful number, since it uses less digits than its factorization.

4042142243212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421234400 (or 421234398 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4042142243212 its reverse (2123422412404), we get a palindrome (6165564655616).

The spelling of 4042142243212 in words is "four trillion, forty-two billion, one hundred forty-two million, two hundred forty-three thousand, two hundred twelve".